Oil Pressure Sensor Socket,1 1/16 Socket Switch Fits 3/8" Drive or 1 1/8" Hex Wrench,Professional Oil Pressure Switch Socket for Quick Removing/Installing Oil Sending Unit (Silver). Wide Range of Applications: Our oil pressure switch socket has a 3/8" I.D. on one end for 3/8" drivers and a 1 1/8" I.D. on the other end for 1 1/8" hex wrenches.
